Full Gameplay Walkthrough...

Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
A Better Tomorrow	Enter the Greenhouse.	40
Boston Heyday	Take a shot at the pool table.	15
Boxing Clever	Interact with the punch bag.	15
Cartographer	Visit all locations at Fort Solis.	65
Causality	Experience the alternate ending.	65
Congratulations, you're an engineer	Gain access to Nick Tout's broken Multi Tool.	65
Darkest Before the Dawn	Complete Fort Solis.	65
Drinking on the Job	Finish the bottle of beer.	15
Dust Dancing	Take 3,000 steps on the surface of Mars.	65
Everything is Dust	Find compound 26.	40
Fort Solis	Obtain all trophies.	125
Lights Out	Locate the Generator in the Maintenance Unit.	40
Mi Casa Su Casa	Gain access to Officer Taylor's room.	40
Once more into the Breach	Gain entry to the Ridge Tunnel.	40
Outpatient	Escape the Medical Bay.	40
Relic	Grant power to a door.	15
Skeleton Crew	Locate all crew members.	65
Terra Tour Guide	Collect all audio logs, posters, emails and banners.	65
The Safety of Disbelief	Survive the Storm.	40
Tragedy Documented	View all Video Logs.	65
Welcome to Fort Solis	Complete the Ridge Climb.	15